kkStB Class 112
The kkStB Class 112 was a class of express train 2-2-2 tank engine operated by the Imperial Royal Austrian State Railways (kaiserlich-königliche österreichische Staatsbahnen or kkStB).
| kkStB Class 112 BBÖ Class 112 / DRB Class 69.01 | |
|---|---|
| Number(s) |
|
| Quantity | 2 |
| Manufacturer | Krauss/Linz |
| Year(s) of manufacture | 1907 |
| Retired | 1937, 1942 |
| Wheel arrangement | 2-2-2T |
| Axle arrangement | 1A1 n2vt |
| Track gauge | 1,435 mm (4 ft 8 1⁄2 in) |
| Length | 7,550 mm (24 ft 9 1⁄4 in) |
| Height | 4,558 mm (14 ft 11 1⁄2 in) |
| Wheelbase | 3,500 mm (11 ft 5 3⁄4 in) |
| Overall wheelbase | 5,050 mm (16 ft 6 3⁄4 in) |
| Service weight | 31.6 t (31.1 long tons; 34.8 short tons) |
| Adhesive weight | 14.3 t (14.1 long tons; 15.8 short tons) |
| Top speed | 75 km/h (47 mph) |
| Driving wheel diameter | 1,450 mm (57 1⁄8 in) |
| Leading wheel diameter | 870 mm (34 1⁄4 in) |
| Trailing wheel diameter | 870 mm (34 1⁄4 in) |
| No. of cylinders | 2 |
| LP cylinder bore | 400 mm (15 3⁄4 in) |
| HP cylinder bore | 260 mm (10 1⁄4 in) |
| Piston stroke | 550 mm (21 5⁄8 in) |
| Boiler Overpressure | 15 kgf/cm2 (1,470 kPa; 213 lbf/in2) |
| No. of heating tubes | 128 |
| Heating tube length | 2,500 mm (8 ft 2 1⁄2 in) |
| Grate area | 1.03 m2 (11.1 sq ft) |
| Radiative heating area | 5.20 m2 (56.0 sq ft) |
| Tube heating area | 39.60 m2 (426.3 sq ft) |
| Water capacity | 3.0 m3 (660 imp gal; 790 US gal) |
| Fuel | 1.36 t (1.34 long tons; 1.50 short tons) of coal |
In order for the kkStB to provide a fast feeder service to express train stations, a requirement arose for small, fast locomotives. Karl Gölsdorf designed Class 112 for this purpose. The compound locomotive engines were well built, enabled a top speed of 100 km/h (62 mph) to be attained for short periods of time and could haul 100 tonnes continuously at 80 km/h (50 mph). On their deliver in 1907 by Krauss in Linz the two engines were fitted with a small smokebox superheater, that was later removed.
The small locomotives were initially used to haul newspaper trains between Vienna and Linz. Later they hauled the shuttle (Pendler) between Hütteldorf and Unterpurkersdorf, a connecting line to the Vienna Stadtbahn, where they were marshalled in the centre of the train.
Number 112.02 was retired in 1937, whilst 112.01 went into the Deutsche Reichsbahn as number 69 011 where it was withdrawn from service in 1942.
Literature
- Heribert Schröpfer, Triebfahrzeuge österreichischer Eisenbahnen - Dampflokomotiven BBÖ und ÖBB, alba, Düsseldorf, 1989 ISBN 3-87094-110-3